[sane-devel] Scanner Basics

[Jaeger, Gerhard]

Small summary:

- USB is up'n working
- Module scanner is loaded

--> Great!

Now you need the SANE Plustek backend working!

Which version do we have:
type:
scanimage --version

We should have at least 1.0.8 for the EPSON, if not,
try and find a suitable SANE-RPM from RedHat...

Next step:
Find out where sane.d is loacted - the configuration directory:
use: locate sane.d
The fist line should be something like:
/etc/sane.d
or
/usr/local/etc/sane.d

In this directory check for dll.conf and make sure that
at least one line is inside:
plustek
Any leading # should be removed

Now the Plustek backend will be used by any SANE-using
programs (like xsane)

Now check the plustek.conf file, you can use at least the sample
entries, but change the device entry from:
device /dev/usbscanner
to
device /dev/usb/scanner0

Make also sure, that you are allowed to access this device:
ls -l /dev/usb/scanner0
should show up something like this:
crw-rw-rw-    1 root     root     180,  48 Jan 19  2001 /dev/usb/scanner0

if not, change the access rights.

This all should lead to a working xsane...

Gerhard



On Saturday, 16. November 2002 15:04, Karl F. Larsen wrote:
 > If you load Red Hat 8.0 Linux and look around you will see a Sane
> button under Imaging and it's so easy to just click this and in general it
> comes up and you say yes to the license thing and then it says "can't find
> Scanner".
>
> 	Now what?
>
> 	If your very persistent you will join the Sane list and be told a
> lot of stuff that is good but confusing. Then your told the secret. The
> secret is to divide and win. The first thing to do is make sure Sane can
> FIND the scanner.
>
> 	The writers of Sane made a very important tool. It is software
> called "sane-find-scanner". This software lets you divide the problem into
> parts. Now I don't care whether my scanner works, I'm just going to make
> sure SANE CAN FIND MY SCANNER.
>
> 	The next step is to look for the scanner. In a Terminal window make
> it a super user with su- and provide your root password. Now type this:
>
> 		sane-find-scanner <Enter>
>
> It will either print out some words but have zero information, or it will
> find the scanner. The out put when a scanner is found looks like this:
>
> # Note that sane-find-scanner will find any scanner that is connected
> # to a SCSI bus and some scanners that are connected to the Universal
> # Serial Bus (USB) depending on your OS. It will even find scanners
> # that are not supported at all by SANE. It won't find a scanner that
> # is connected to a parallel or proprietary port.
>
> # You may want to run this program as super-user to find all devices.
> # Once you found the scanner devices, be sure to adjust access
> # permissions as necessary.
>
> sane-find-scanner: found USB scanner (vendor = 0x04b8, product = 0x010f)
> at device /dev/usb/scanner0
>
> 	Please notice that the last line that starts sane-find-scanner:
> lists all the data about your scanner so you KNOW Sane has found the
> scanner you want to use. Of course This is my scanner and it's plugged into
> the first USB port /dev/usb/scanner0
>
> 	Now to get to this happy point you will need to do perhaps a lot of
> things. There is a lot of help in the manuals you can reach by typing man
> sane in your terminal. Depending on the type of scanner you will need to do
> some tricky stuff. First read man sane and it will lead you to, in my case
> man-usb. There I learned how to find out the numbers that represent my
> scanner.
>
> 	Then I tried to remove the scanner module with "rmmod scanner" and
> discovered it was not even loaded! I then did cat /proc/bus/usb/devices and
> learned my Epson scanner has the number 0x04b8 and my model is 0x01f. Then
> following the information in the man page I used modprobe to load scanner
> with the scanner data. It looks like:
>
> 	modprobe scanner vendor=0x04b8 product=0x01f
>
> Before I did this sane-find-scanner found nothing. After it found my
> scanner. I will put this line into the /ect/rc.d/rc.local file so I don't
> have to type it in every time.
>
> 	So my new condition is this: My scanner still does not work, but now
> I know Sane does find my scanner, and now the question is why does it not
> work?